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Finding the Fourth Proportional to 133,329.30, 184,005.81 and 75,986.16

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Solution

The fourth proportional to 133,329.30, 184,005.81 and 75,986.16 is: 104,867.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,329.30 : 184,005.81 = 75,986.16 : x
  2. Step 2: Convert to fraction form
    133,329.30/184,005.81 = 75,986.16/x
  3. Step 3: Cross multiply
    133,329.30x = 184,005.81 × 75,986.16
  4. Step 4: Simplify right side
    133,329.30x = 13,981,894,919.59
  5. Step 5: Solve for x
    x = 13,981,894,919.59/133,329.30
  6. Step 6: Final answer
    x = 104,867.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.